浅谈内科护生实习心理及带教措施

临床实习是每位护生走向护理岗位的重要阶段，是学校教育的继续延伸，是将理论知识转化实践能力的过程。内科是护生实习的重点科室之一，它的基础护理要求高专科护理的针对性强，护生往往会产生紧张、自卑、恐惧、厌烦等心理特点。我科经过几年的反复实践，针对本科实习护生的不同心理，采取相应的带教措施，帮助她们顺利完成本科实习，并得到了护生的普遍认可，现小结如下。

Psychological capital mediates the association between nurses'practice environment and work engagement among Chinese male nurses

Objectives:This study aims to investigate the environmental and individual factors contributing to male nurses'psychological well-being and to explore the psychological mechanisms that may explain the links between nurses'practice environment and work engagement,thereby presenting the implications for nurse managers.Methods:A total of 161 male nurses from three tertiary first-class hospitals in Changsha City in China participated in the study.We collected the data using the Practice Environment Scale of the Nursing Work Index,the Psychological Capital Questionnaire,and the Utrecht Work Engagement Scale.Results:Scores of male nurses'practice environment(2.88±0.31),psychological capital(4.42±0.62),and work engagement(3.17±1.39)were all above the midpoint;however,the subscales"the nursing staffing and resources adequacy"(2.72±0.48),"hope"(4.33±0.72),and"dedication"(2.96±1.61)scored lowest.Nurses'practice environment and psychological capital positively predicted nurses'work engagement;psychological capital fully mediated the influence of nurses'practice environment on work engagement.Conclusions:Creating a supportive nursing practice environment can increase male nurses'work engagement by developing their psychological capital.Nurse managers can then provide reasonable workload and pathways for male nurses to achieve goals,thereby fostering their hope.

Distress management in cancer patients:Guideline adaption based on CAN-IMPLEMENT

Objective This study aimed to adapt relevant clinical practice guidelines for distress management in cancer patients based on A Guideline Adaptation and Implementation Planning Resource(CAN-IMPLEMENT),and develop Cancer-related Distress Management Guidelines in the context of the research site.Methods According to CAN-IMPLEMENT,the symptoms of cancer patients in Shanghai were investigated,and a work plan was formulated to adapt cancer-related distress management guidelines.The relevant clinical practice guidelines for distress management in cancer patients were searched,screened and assessed,the contents of the included clinical practice guidelines were screened,extracted and integrated,and the Cancer-related Distress Management Guidelines was developed.After peer review,the Cancer-related Distress Management Guidelines was finally formed.Results The physical symptom distress score was higher than the psychological symptom distress score among cancer patients in Shanghai.Two clinical practice guidelines related to distress management in cancer patients were included after searching,screening,assessment and selection systematically.The domain scores of the draft Cancer-related Distress Management Guidelines on Appraisal of Guidelines for Research and Evaluation II(AGREE II)were 73.75%–87.50%,respectively.The scores of most recommendations on feasibility,appropriateness,meaningfulness and effectiveness were at least 90%.The final guidelines included 13 recommendations.Conclusions The quality of the draft Cancer-related Distress Management Guidelines based on two included guidelines was well-accepted.The final Cancer-related Distress Management Guidelines needs to be further verified in clinical practice for feasibility,suitability and effectiveness.

Distress management in cancer patients:Guideline implementation based on CAN-IMPLEMENT

Objective:To standardize the distress management of gastric cancer patients receiving chemotherapy,the adapted Cancer-related Distress Management Guidelines were implemented in nursing practice among gastric cancer patients receiving chemotherapy based on A Guideline Adaptation and Implementation Planning Resource(CAN-IMPLEMENT).Methods:Based on the theoretical framework of CAN-IMPLEMENT,A multidisciplinary team was established,barriers and facilitators obstacles of guidelines implementation in medical oncology units were assessed,corresponding solutions were formulated,the guidelines implementation process was monitored,and implementation results were evaluated.Results:The multidisciplinary team developed review criteria,standardized work paths,assessment tools,training manuals for healthcare professionals,education manuals for patients and their caregivers.After guidelines implementation,the completion rate of the distress management record came up to 97.9%(189/193).From September 2017 to December 2018,the compliance of medical staff on most items in the audit checklist was improved,ranging from 57.1%(100/175)to 100.0%(193/193).The positive distress rate of gastric cancer patients receiving chemotherapy was decreased from 22.7%(32/141)to 9.3%(18/193)(P<0.05),and the Median(range)of the distress score declined from 2(0e9)to 0(0e7)(P<0.001).Conclusions:The implementation of guidelines based on CAN-IMPLEMENT promotes the establishment of a distress management system in the medical oncology units.The review standards,standardized work paths,and evaluation tools for distress in cancer patients formulated by the multidisciplinary team had clinical applicability and effectiveness.Quality control in the practice of distress management was effective.The compliance of healthcare professionals with distress management was improved.The distress of gastric cancer patients receiving chemotherapy was alleviated effectively.

Effect of water restrictions on the physiological parameters,psychological behavior and brain c-Fos expression in rat

Objective In order to characterize the feature of stress response induced by stressor with both physical and psychological natures, the effect of water restriction performed in different experimental modes on the physiological parameters, psychological behavioral manifestations and brain c-Fos expressions were observed and compared. Methods 58 male Wistar rats were used and randomly divided into three experimental groups （n=18 for each） and a control group （n=4）. In control group, the rats were allowed to access drinking water freely at all experimental period. In the experimental groups the water supply to the rats was restricted. In timed water supply （TW） group, the water was supplied twice a day, 10 min for each in fixed hours every day. In empty bottle-served （EB） and water-restricted （WR） groups, the water was served only once a day for 10 min, either in the early morning or evening, and in the other time point scheduled for water supply only an empty bottle without water was provided in the EB group and nothing was given in the WR group. The quantities of drank water and eaten food, weight-gaining, and behavior score were observed every day. The serum level of corticosterone was assayed and the rats were sacrificed with fixative perfusion of 3 d, 7 d or 14 d respectively, following water restriction （n=6 for each time point in each group）. The brain c-Fos expressions were examined with immunohistochemistry. Results The slowing down of weight-gaining, rise of serum corticosterone level, occurrence of psychological behavioral manifestations of unpeaceful restlessness such as exploring and attacking, enhance of c-Fos expression in the subfomical organ （SFO）, median preoptic nucleus （MnPO）, area postrema （AP）, hypothalamic paraventricular nucleus （PVN）, supraoptic nucleus （SON）, medial （MeA） and central （CeA） amygdaloid nucleus and ventrolateral septum （LSV） were noticed in both EB and WR groups, except the nucleus of solitary tract （NTS） in which the Fos expression was decreased. The changes of Fos expression in most of nuclei in EB group began at day 3, at least persisted till day 7, and backed down at day 14. While in WR group, similar changes started at day 7 and reached its peak at day 14. In TW group, only the concentration of corticosterone at day 7 was slightly increased and the rest indexes observed were unchanged. Conclusion The results indicate that water restriction induces physical as well as psychological stress responses. And the water restrictions experimentally executed in different modes result in different manifestations of behavioral response and brain immediately early gene expression in discrete brain nuclei/regions.

Techno-psychological Aspects of Social Media Behaviors

Social media has become an inevitable part of our lives in the age of network society. People establish multiple identities for themselves, with or without references to the real world, and behave according to those identities. Self-made components of virtual presence are not limited to identities only; many users also create hyper-personalities for themselves with the help of new technologies. Then, the fundamental question becomes： Why do people create self-made identities and hyper-personalities to portray or hide themselves in social media environments？ The answer to this question has certain connections and implications for behaviors of social media users. Therefore, researchers have investigated why some people find social media attractive and attend whenever possible, while others are afraid of social media and hesitate to attend. Positive and negative behaviors of social media users can be classified as braggadocian and preventative. Braggadocian behaviors are related to courageously taking advantage of social media, whereas preventative behaviors are concerned with avoidance of social media. The dominant behavioral pattern of a user depends on what one can achieve through attending or preventing social media. This paper first discusses basic elements of human behavior that drive social media such as altruism, hedonism, connectionism, homophily, multiple identities, memetics, narcissism, and tribalism. Then, it focuses on precautionary elements of human behavior such as avoidance, escape, blocking, fear, hiding, removal, and protectionism. Whether they are attentive or not, one thing is clear： People refrain or enrich their own lives in social media rather than being abused or watching others in industrial media.

PROTECTIVE EFFECTS OF MELATONIN ON CULTURED RAT CARDIOMYOCYTES DAMAGED BY H_2O_2

Objective.To investigate the protective effects of melatonin(MT )on cardiomyocytes against the ox-idative injury induced by H 2 O 2 .Methods.Ventricular myocytes were isolated from neonatal rats and cultured for3～5days.Cells were divided into4groups:control group,H 2 O 2 (100μmol/L H 2 O 2 )group,MT group(100μmol/L MT )and MT preconditioning group(100μmol/L MT+100μmol/L H 2 O 2 ).The fluorescent probe,DCFH?DA,was used to detect intracellular levels of reactive oxygen species(ROS)and another fluorescent probe,Fluo-3?AM,was used to detect[Ca 2+ ] i by using a laser scanning confocal microscopy(LSCM).The malondi-aldehyde(MDA)content in cardiomyocytes was determined by measuring thiobarbituric acid?reactive sub-stances to monitor lipid peroxidation.The activity of cytoplasmic enzyme lactate dehydrogenase(LDH)that was released into the culture media was assayed to indicate alternation in the integrity of the cellular membrane.Trypan blue exclusion was used to detect the cell viability.Results.Compared with the control group,intracellular ROS,[Ca 2+ ] i ,MDA content ,LDH leakage and cell death were significantly elevated when cells were treated by100μmol/L H 2 O 2 for60minutes(P<0.01).However,those changes were significantly attenuated in MT preconditioning group.Conclusion.MT has very good antioxidant effect and can protect the cardiomyocytes against H 2 O 2 -in-duced injury.

COMPARATIVE EFFECTS OF LOSARTAN AND CAPTOPRIL ON VENTRICULAR REMODELING AND FUNCTION AFTER MYOCARDIAL INFARCTION IN THE RAT

Objective. To determine the effects of losartan and captopril treatment on ventricular remodeling and function after myocardial infarction in rats. Methods. Thirty-two rats with MI induced by coronary ligation after seven days were divided into four groups randomly and treated with captopril(2 g. liter-1, group A), losartan(10 mg. kg-1. d-1, group B), losartan(30 mg. kg-1. d-1,group C) and placebo (no drug, group D) for six weeks, respectively. Shamoperated rats(group E)served as controls. Echocardiography was performed at 1 and 7 weeks after MI, re- spectively. Results. Compared with the results before treatment,both LV end-diastolic internal diameter and volume decreased significantly and the thickened Posterior wall was reversed in group A, B and C; the peak early filling velocity decreased whereas the peak velocity was increased in these three groups. There are no significant difference among the three treated groups. However,LV end-diastolic internal diameter and the E/A were still increased,whereas the thickness of anterior wall and the peak velocity of LV outflow were decreased in group A,B,and C after treatment comparing with group E. Conclusion. Both angiotensin converting enzyme inhibitor and angiotensin II receptor antagonist can prevent the ventricular remodeling and improve the ventricular function.

The study on the Psychological motivation of Costs Stickiness --Empirical Evidence from China

This paper studies Whether the managerial overconfidence have any impact on the Cost management （Characterized by the degree of the Costs Stickiness ） .Using the ample of the A-share listed companies between 2007-2011 in China, We document that SG＆A cost stickiness decreases in the degree of overconfidence. The further studies show the negative relation is more significant in the state-owned listed companies,which proved our speculation that the manager will cut expenses avoiding significant decline in performance when the sales decline in the state-owned listed company.

Processing of 8-Channel Synchronous Electro-Cardiograph

A real time algorithm is presented here to recognize and analyze 8 channel simultaneous electro cardiograph(ECG). The algorithm transforms 8 channel simultaneous ECG into three orthogonal vectors and spatial velocity first, then forms the spatial velocity sample, and uses this spatial velocity sample to recognize each beat. The algorithm computes the averaged parameters by using averaged spatial velocity and the averaged ECG and the current parameters by using the current beat period and current width of QRS. The algorithm can recognize P, QRS and T onsets and ends of simultaneous 12 lead ECG precisely, and some arrhythmias such as premature ventricular beat, ventricular escape beat, R on T, bigeminy, trigeminy. The algorithm software works well on a real 8 channel ECG system and meets the demands of designing.

Exploring Criminology in Literary Texts： Robert Browning --An Example

The association between literature and criminology is undeniable, and yet, for too long, those studying crime and literature respectively have failed to see the connection between the two, or dismissed it as being irrelevant. This study explores literary pieces, which deal exclusively with murder in order to prove that the two disciplines literature and criminology, are intimately connected and essentially inseparable. Some literary pieces which deal with identifying the thought processes of murderers have been so insightful that crime experts applied them to certain high-profile cases. That so much violent crime is depicted in literature should stimulate further research into the links between criminology and literature. Robert Browning＇s “The Laboratory： Ancien Regime” （1844） is selected as a case study in order to demonstrate how criminological theories can successfully be applied to literary pieces. Browning＇s protagonist will prove to be a fictional manifestation of a female sadistic criminal as defined by psychiatrist/criminologist Paul De River in his criminology/sexology textbook for law enforcement personnel The Sexual Criminal（1949） .

The Research of Fractal Characteristics of the Electrocardiogram in a Real Time Mode

The article presents the results of recent investigations into Holter monitoring of ECG, using non-linear analysis methods. This paper discusses one of the modern methods of time series analysis--a method of deterministic chaos theory. It involves the transition from study of the characteristics of the signal to the investigation of metric （and probabilistic） properties of the reconstructed attractor of the signal. It is shown that one of the most precise characteristics of the functional state of biological systems is the dynamical trend of correlation dimension and entropy of the reconstructed attractor. On the basis of this it is suggested that a complex programming apparatus be created for calculating these characteristics on line. A similar programming product is being created now with the support of RFBR. The first results of the working program, its adjustment, and further development, are also considered in the article.

Forget-me-not： Complex floral displays, inter-signal interactions, and pollinator cognition

Flowers are multisensory displays used by plants to influence the behavior of pollinators. Although we know a great deal about how individual signal components are produced by plants and detected or learned by pollinators, very few experiments directly address the function of floral signal complexity, i.e. how the multicomponent nature of these signals benefits plant or pollinator. Yet, experimental psychology suggests that increasing complexity can enhance subjects＇ ability to detect, learn and remember stimuli, and the plant＇s reproductive success depends upon ensuring that pollinators learn their signals and so transport pollen to other similar （conspecific） flowers. Here we explore functional hypotheses for why plants invest in complex floral displays, focusing on hypotheses in which floral signals interact to promote pollinator learning and memory. Specifically, we discuss how an attention-altering or context-providing function of one signal may promote acquisition or recall of a second signal. Although we focus on communication between plants and pollinators, these process-based hypotheses should apply to any situation where a sender benefits from enhancing a receiver＇s acquisition or recall of information .

Real-time pre-processing system with hardware accelerator for mobile core networks

With the rapidly increasing number of mobile devices being used as essential terminals or platforms for communication, security threats now target the whole telecommunication infrastructure and become increasingly serious. Network probing tools, which are deployed as a bypass device at a mobile core network gateway, can collect and analyze all the traffic for security detection. However, due to the ever-increasing link speed, it is of vital importance to offioad the processing pressure of the detection system. In this paper, we design and evaluate a real-time pre-processing system, which includes a hardware accelerator and a multi-core processor. The implemented prototype can quickly restore each encapsulated packet and effectively distribute traffic to multiple back-end detection systems. We demonstrate the prototype in a well-deployed network environment with large volumes of real data. Experimental results show that our system can achieve at least 18 Gb/s with no packet loss with all kinds of communication protocols.

AGENT MODEL ANALYSIS TO EXPLORE EFFECTS OF INTERACTION AND ENVIRONMENT ON INDIVIDUAL PERFORMANCE

This paper tries to find interaction rules between members and self-reform rules of members in some scientific research laboratories at a graduate school. The candidate of rules are extracted from the personality description sentences about factors： extroversion, agreeableness, conscientiousness, neuroticism and openness in the big five theory of personality psychology. In this paper, interaction and self-reform rules are not described by personalities themselves; instead, they are described by corresponding phenomena： activity, empathy, persistence, autonomy, and analytical ability which appear in the behavior side. Each member＇s initial value is determined from the main 5-factor personality investigation to the member, and the target value is given by the member＇s self-declaration. The rule selection is carried out by the genetic algorithm, where a sigmoid function is introduced in the renewal algorithm of the value, whereby a difficulty of setting the renewal parameters is avoided. An analysis is added about the obtained rules, and the validity of this approach and the subjects for future study are discussed. Finally, consideration is extended to the effect of environment on the behavior of members to reinforce the set of rules.